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The latest hardfork to land on mainnet, gray glacier, does not exist on any testnet. Setting the default hardfork in ganache to gray glacier breaks testnet forking unless a valid hardfork, e.g. london is supplied at startup.
fixes https://github.com/trufflesuite/ganache/issues/3631 depending on the network hardfork default value should be set.
The latest hardfork to land on mainnet, gray glacier, does not exist on any testnet. Setting the default hardfork in ganache to gray glacier breaks testnet forking unless a valid hardfork, e.g. london is supplied at startup.